Translation:Двадцять п'ять доларів
Usually it’s on the key to the left of 1 (where `~ is on the US keyboard, and ё is on the Russian keyboard).
Some operating systems (Windows XP) don’t include apostrophe in the Ukrainian keyboard at all. In some Windows variants, you might need to choose ‘Ukrainian (enhanced)’ keyboard layout and not ‘Ukrainian’. This is a problem with Windows: keyboard layouts without apostrophe and not usable for Ukrainian. If you use such OS, you might need to install a non-standard keyboard layout.